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Having SatCom problems?
A burst of radiation on the sun's surface may trigger a geomagnetic storm, which can disrupt satellite communications.
In order to prevent unnecessary maintenance on satellite communications systems Air Sat One has provided a feed of Geophysical Events from NOAA's Space Weather Prediction Center. Check here to see if solar activity could be a cause of satellite communications problems.
Geophysical Alert Message Issued: Jan 2nd, 2026 7:07:27 pm
Space Weather Message Code: ALTK05
- Serial Number: 1936
- Issue Time: 2026 Jan 03 0007 UTC
- ALERT: Geomagnetic K-index of 5
- Threshold Reached: 2026 Jan 02 2359 UTC
- Synoptic Period: 2100-2400 UTC
- Active Warning: Yes
- NOAA Scale: G1 - Minor
- NOAA Space Weather Scale descriptions can be found at
- www.swpc.noaa.gov/noaa-scales-explanation
- Potential Impacts: Area of impact primarily poleward of 60 degrees Geomagnetic Latitude.
- Induced Currents - Weak power grid fluctuations can occur.
- Spacecraft - Minor impact on satellite operations possible.
- Aurora - Aurora may be visible at high latitudes, i.e., northern tier of the U.S. such as northern Michigan and Maine.
Geophysical Alert Message Issued: Jan 2nd, 2026 3:28:57 pm
Space Weather Message Code: WARK06
- Serial Number: 630
- Issue Time: 2026 Jan 02 2028 UTC
- WARNING: Geomagnetic K-Index of 6 expected
- Valid From: 2026 Jan 02 2030 UTC
- Valid To: 2026 Jan 03 0600 UTC
- Warning Condition: Onset
- NOAA Scale: G2 - Moderate
- NOAA Space Weather Scale descriptions can be found at
- www.swpc.noaa.gov/noaa-scales-explanation
- Potential Impacts: Area of impact primarily poleward of 55 degrees Geomagnetic Latitude.
- Induced Currents - Power grid fluctuations can occur. High-latitude power systems may experience voltage alarms.
- Spacecraft - Satellite orientation irregularities may occur; increased drag on low Earth-orbit satellites is possible.
- Radio - HF (high frequency) radio propagation can fade at higher latitudes.
- Aurora - Aurora may be seen as low as New York to Wisconsin to Washington state.
Geophysical Alert Message Issued: Jan 2nd, 2026 2:44:30 pm
Space Weather Message Code: WARK04
- Serial Number: 5205
- Issue Time: 2026 Jan 02 1944 UTC
- EXTENDED WARNING: Geomagnetic K-index of 4 expected
- Extension to Serial Number: 5204
- Valid From: 2026 Jan 02 1435 UTC
- Now Valid Until: 2026 Jan 03 1500 UTC
- Warning Condition: persistence
- NOAA Space Weather Scale descriptions can be found at
- www.swpc.noaa.gov/noaa-scales-explanation
- Potential Impacts: Area of impact primarily poleward of 65 degrees Geomagnetic Latitude.
- Induced Currents - Weak power grid fluctuations can occur.
- Aurora - Aurora may be visible at high latitudes such as Canada and Alaska.
Geophysical Alert Message Issued: Jan 2nd, 2026 2:30:39 pm
Space Weather Message Code: ALTK05
- Serial Number: 1935
- Issue Time: 2026 Jan 02 1930 UTC
- ALERT: Geomagnetic K-index of 5
- Threshold Reached: 2026 Jan 02 1925 UTC
- Synoptic Period: 1800-2100 UTC
- Active Warning: Yes
- NOAA Scale: G1 - Minor
- NOAA Space Weather Scale descriptions can be found at
- www.swpc.noaa.gov/noaa-scales-explanation
- Potential Impacts: Area of impact primarily poleward of 60 degrees Geomagnetic Latitude.
- Induced Currents - Weak power grid fluctuations can occur.
- Spacecraft - Minor impact on satellite operations possible.
- Aurora - Aurora may be visible at high latitudes, i.e., northern tier of the U.S. such as northern Michigan and Maine.
Geophysical Alert Message Issued: Jan 2nd, 2026 2:20:12 pm
Space Weather Message Code: WARK04
- Serial Number: 5204
- Issue Time: 2026 Jan 02 1920 UTC
- EXTENDED WARNING: Geomagnetic K-index of 4 expected
- Extension to Serial Number: 5203
- Valid From: 2026 Jan 02 1435 UTC
- Now Valid Until: 2026 Jan 03 0900 UTC
- Warning Condition: persistence
- NOAA Space Weather Scale descriptions can be found at
- www.swpc.noaa.gov/noaa-scales-explanation
- Potential Impacts: Area of impact primarily poleward of 65 degrees Geomagnetic Latitude.
- Induced Currents - Weak power grid fluctuations can occur.
- Aurora - Aurora may be visible at high latitudes such as Canada and Alaska.
Geophysical Alert Message Issued: Jan 2nd, 2026 2:21:01 pm
Space Weather Message Code: WARK05
- Serial Number: 2165
- Issue Time: 2026 Jan 02 1921 UTC
- WARNING: Geomagnetic K-index of 5 expected
- Valid From: 2026 Jan 02 1920 UTC
- Valid To: 2026 Jan 03 0600 UTC
- Warning Condition: Onset
- NOAA Scale: G1 - Minor
- NOAA Space Weather Scale descriptions can be found at
- www.swpc.noaa.gov/noaa-scales-explanation
- Potential Impacts: Area of impact primarily poleward of 60 degrees Geomagnetic Latitude.
- Induced Currents - Weak power grid fluctuations can occur.
- Spacecraft - Minor impact on satellite operations possible.
- Aurora - Aurora may be visible at high latitudes, i.e., northern tier of the U.S. such as northern Michigan and Maine.
Geophysical Alert Message Issued: Jan 2nd, 2026 2:10:52 pm
Space Weather Message Code: ALTK04
- Serial Number: 2619
- Issue Time: 2026 Jan 02 1910 UTC
- ALERT: Geomagnetic K-index of 4
- Threshold Reached: 2026 Jan 02 1906 UTC
- Synoptic Period: 1800-2100 UTC
- Active Warning: Yes
- NOAA Space Weather Scale descriptions can be found at
- www.swpc.noaa.gov/noaa-scales-explanation
- Potential Impacts: Area of impact primarily poleward of 65 degrees Geomagnetic Latitude.
- Induced Currents - Weak power grid fluctuations can occur.
- Aurora - Aurora may be visible at high latitudes such as Canada and Alaska.
Geophysical Alert Message Issued: Jan 2nd, 2026 12:01:25 pm
Space Weather Message Code: WATA20
- Serial Number: 1085
- Issue Time: 2026 Jan 02 1701 UTC
- WATCH: Geomagnetic Storm Category G1 Predicted
- Highest Storm Level Predicted by Day:
- Jan 02: G1 (Minor) Jan 03: G2 (Moderate) Jan 04: G1 (Minor)
- THIS SUPERSEDES ANY/ALL PRIOR WATCHES IN EFFECT
- NOAA Space Weather Scale descriptions can be found at
- www.swpc.noaa.gov/noaa-scales-explanation
- Potential Impacts: Area of impact primarily poleward of 60 degrees Geomagnetic Latitude.
- Induced Currents - Weak power grid fluctuations can occur.
- Spacecraft - Minor impact on satellite operations possible.
- Aurora - Aurora may be visible at high latitudes, i.e., northern tier of the U.S. such as northern Michigan and Maine.
Geophysical Alert Message Issued: Jan 2nd, 2026 9:35:03 am
Space Weather Message Code: WARK04
- Serial Number: 5203
- Issue Time: 2026 Jan 02 1435 UTC
- WARNING: Geomagnetic K-index of 4 expected
- Valid From: 2026 Jan 02 1435 UTC
- Valid To: 2026 Jan 02 2359 UTC
- Warning Condition: Onset
- NOAA Space Weather Scale descriptions can be found at
- www.swpc.noaa.gov/noaa-scales-explanation
- Potential Impacts: Area of impact primarily poleward of 65 degrees Geomagnetic Latitude.
- Induced Currents - Weak power grid fluctuations can occur.
- Aurora - Aurora may be visible at high latitudes such as Canada and Alaska.
Geophysical Alert Message Issued: Jan 2nd, 2026 7:21:58 am
Space Weather Message Code: ALTEF3
- Serial Number: 3592
- Issue Time: 2026 Jan 02 1221 UTC
- CONTINUED ALERT: Electron 2MeV Integral Flux exceeded 1000pfu
- Continuation of Serial Number: 3591
- Begin Time: 2025 Dec 21 1425 UTC
- Yesterday Maximum 2MeV Flux: 1919 pfu
- Potential Impacts: Satellite systems may experience significant charging resulting in increased risk to satellite systems.
